swapping a 350 for a crusader

[krisnowicki]

Two part question. First I have an 83 350 and i have found a 89 crudsader 350. Would these two be inter changable? Would the alpha drive hook up to is the same and would all the accesories fit the same?
2 it will mount in my boat on the same two bolt mount right?

 

[180shabah]

Re: swapping a 350 for a crusader

Those two engines are of different vintages, short version they have a different flywheel, starter and coupler. If you get these parts with the "new" engine, then yes the rest is 100% interchangable.

 

[5meter]

Re: swapping a 350 for a crusader

Did you get the flywheel and coupler with the 89?

 

[Bondo]

Re: swapping a 350 for a crusader

First I have an 83 350,alpha drive and i have found a 89 crudsader 350.

Ayuh,.......

While it's Doable,.......

Crusader is Not a drop in, Plug,+ Play motor for a Mercruiser............

 

[180shabah]

Re: swapping a 350 for a crusader

What are the differences that couldn't be overcome using components off of the old engine.

 

[krisnowicki]

Re: swapping a 350 for a crusader

i would be getting the flywheel and the starter but no coupler... but the mount is the same?

 

[Bondo]

Re: swapping a 350 for a crusader

but the mount is the same?

No,..........

If you Strip them both down to the Long Block configuration,+ then install All the Mercruiser parts onto the Crusader,......
Then you'll just have to deal with the Differences at the Flywheel........

 

[MikDee]

Re: swapping a 350 for a crusader

Aha! That's because the Crusader is an inboard engine, and the Mercruiser is I/O setup. Basically the same motor, but like bondo, & shabah said the newer motor has a different (newer style) crankshaft, hence a different flywheel, & coupler bolt pattern., and of course you'll need your old Merc style exhaust manifolds, & risers.

 

[mtnrat]

Re: swapping a 350 for a crusader

I understand the differences between pre and post 1986 engines. What coupler would be needed to use a post 86 in a pre 86 application. Is it the same for Merc and Volvo? If not what are the differences?

 

[Bondo]

Re: swapping a 350 for a crusader

What coupler would be needed to use a post 86 in a pre 86 application. Is it the same for Merc and Volvo? If not what are the differences?

Ayuh,....... It depends entirely on What you're starting with...........

Old Mercs used a Crankshaft mounted Coupler,....
Later 1s used a Flywheel mounted Coupler......

If it's the Crankshaft mounted Coupler,....
They make 1 with the 3" bolt pattern for the newer crankshafts......

If it's the Flywheel mounted Coupler,...... You just need the Right Flywheel......

And,........ I have No Clue what Volvo uses,.... So,... I can't say......

 

[krisnowicki]

Re: swapping a 350 for a crusader

the reason i am asking is i have a rebuilt crusader here for 500 or i can get the long block from apido for 1450 that is the oem replacement is it really that much truoble to stip this down.. I have the orignal 350 from my boat...

 

[tommays]

Re: swapping a 350 for a crusader

well your dealing with the 12" VS 14" flywheel to the best of my understanding ?

As well as the problems that go with the correct starter


I have seen this come up many times and never seen and easy fix( like use flywheel X and it will work )


And just be sure Crusader spins the correct way as it could be CC or C



Tommays

 

[Bondo]

Re: swapping a 350 for a crusader

is it really that much truoble to stip this down..

Ayuh,........

It's a few hours time to Me,.....Along with a bunch of Gaskets,+ whatnot.....
But,......
We have No Idea of Your Abilities,+ Tools available to you.....

 

[MikDee]

Re: swapping a 350 for a crusader

well your dealing with the 12" VS 14" flywheel to the best of my understanding ?

As well as the problems that go with the correct starter


I have seen this come up many times and never seen and easy fix( like use flywheel X and it will work )


And just be sure Crusader spins the correct way as it could be CC or C



Tommays

Rotation?, Good Point Tommays!